Table 2.

Expectation-Maximization cluster analysis of drug release data

Polymer	Model name	Time (days)
#		3	10	22	28	36
1	pc13-0-0	LOW	LOW	MEDIUM	MEDIUM	MEDIUM
2	pc12-2-0-charge4	LOW	LOW	LOW	LOW	LOW
3	pc11-0-2	MDIUM	HIGH	HIGH	MEDIUM	MEDIUM
4	pc9-2-2-charge4	HIGH	HIGH	HIGH	HIGH	HIGH
5	pc13-1-0	LOW	LOW	MEDIUM	LOW	LOW
6	pc12-1-0	LOW	LOW	LOW	LOW	LOW
7	pc13-0-1	LOW	LOW	LOW	LOW	LOW
8	pc12-0-2	MEDIUM	MEDIUM	HIGH	MEDIUM	MEDIUM
9	pc11-2-1	MEDIUM	MEDIUM	HIGH	MEDIUM	MEDIUM
10	pc10-2-2-charge4	HIGH	HIGH	HIGH	HIGH	HIGH
13	pc12-0-1	LOW	LOW	LOW	LOW	LOW
14	pc12-1-1-charge2	LOW	LOW	LOW	LOW	LOW
16	pc10-1-2	HIGH	HIGH	HIGH	HIGH	HIGH
17	pc11-1-1-charge2	MEDIUM	MEDIUM	HIGH	MEDIUM	MEDIUM